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Bosis: Difference between revisions

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##Ramban 154b s.v. vokimna writes that it is an issue of bitul kli mhechano when a person leaves muktzeh on it on Shabbat even though it is possible to remove it with niyur because you left it with intention to do niyur. Rashba 154b s.v. ha and Ritva s.v. vyesh agree. Ran 154b s.v. bshilfi clearly states that a mid-Shabbat bosis is forbidden in niyur unless the muktzeh was placed with intention of removing it.
##Ramban 154b s.v. vokimna writes that it is an issue of bitul kli mhechano when a person leaves muktzeh on it on Shabbat even though it is possible to remove it with niyur because you left it with intention to do niyur. Rashba 154b s.v. ha and Ritva s.v. vyesh agree. Ran 154b s.v. bshilfi clearly states that a mid-Shabbat bosis is forbidden in niyur unless the muktzeh was placed with intention of removing it.
## Meiri 143a s.v. gariynim and 154b s.v. kvar argues with the Baal Hameor that you can create a bosis in the middle of Shabbat. It isn't clear if he only forbids tiltul min hasad or also niyur. If you didn't leave it there until the end of Shabbat it won't be a bosis.</ref> The halacha is accordance with this opinion.<ref>See Chazon Ish 48:8 and Orchot Shabbat v. 2 pp. 138-9. Magen Avraham 308:50 and 266:14 accepts the Baal Hameor while the Bet Yosef 265:3 does not. Chazon Ish 48:8 writes that the Baal Hameor was rejected. Mishna Brurah 310:26 implies like the Baal Hameor.</ref> A minority opinion holds that a mid-Shabbat bosis isn't a bosis and the muktzeh can be tilted off.<ref>Biur Halacha 310:7 s.v. mitah cites the Baal Hameor and says that he would allow tilting the muktzeh off the mid-Shabbat bosis. Shemirat Shabbat Kehilchata 20 fnt. 195 infers that the Biur Halacha thinks that even the Baal Hameor wouldn't allow tiltul min hasad. Shaarei Muktzeh p. 276 supports this approach in the Baal Hameor.</ref>
## Meiri 143a s.v. gariynim and 154b s.v. kvar argues with the Baal Hameor that you can create a bosis in the middle of Shabbat. It isn't clear if he only forbids tiltul min hasad or also niyur. If you didn't leave it there until the end of Shabbat it won't be a bosis.</ref> The halacha is accordance with this opinion.<ref>See Chazon Ish 48:8 and Orchot Shabbat v. 2 pp. 138-9. Magen Avraham 308:50 and 266:14 accepts the Baal Hameor while the Bet Yosef 265:3 does not. Chazon Ish 48:8 writes that the Baal Hameor was rejected. Mishna Brurah 310:26 implies like the Baal Hameor.</ref> A minority opinion holds that a mid-Shabbat bosis isn't a bosis and the muktzeh can be tilted off.<ref>Biur Halacha 310:7 s.v. mitah cites the Baal Hameor and says that he would allow tilting the muktzeh off the mid-Shabbat bosis. Shemirat Shabbat Kehilchata 20 fnt. 195 infers that the Biur Halacha thinks that even the Baal Hameor wouldn't allow tiltul min hasad. Shaarei Muktzeh p. 276 supports this approach in the Baal Hameor.</ref>
# If muktzeh was placed on non-muktzeh on Shabbat does it make the non-muktzeh a bosis if one had intention to remove it before the end of Shabbat? Most rishonim hold that one can tilt off the muktzeh if one had intention to remove it before the end of Shabbat.<ref>Certainly the Baal Hameor is lenient since a mid-Shabbat bosis is completely permitted. However, even Ramban 154b, Ran 154b, Ritva 154, Rashba 154b, and Meiri 154b agree that one can tilt it off since one didn't plan to leave it until the end of Shabbat. However, Tosfot 44b s.v. yesh implies that a mid-Shabbat bosis is a bosis even if one had intention to remove it later that Shabbat. Tosfot Beitzah 2a s.v. vbet implies the same if not for Rabbenu Tam's opinion. Rabbi Akiva Eiger 44b is bothered how they explain Gemara 154b. He suggests an answer. Bet Yosef 265:3 similarly holds that a mid-Shabbat bosis is a bosis even if one has intention to remove it later that Shabbat. Maamar Mordechai 265:2 answers Rabbi Akiva Eiger's question for the Bet Yosef.</ref>
# If muktzeh was placed on non-muktzeh on Shabbat does it make the non-muktzeh a bosis if one had intention to remove it before the end of Shabbat? Most rishonim hold that one can tilt off the muktzeh if one had intention to remove it before the end of Shabbat.<ref>Certainly the Baal Hameor is lenient since a mid-Shabbat bosis is completely permitted. However, even Ramban 154b, Ran 154b, Ritva 154, Rashba 154b, and Meiri 154b agree that one can tilt it off since one didn't plan to leave it until the end of Shabbat.</ref> Some are strict to forbid tilting a bosis created mid-Shabbat even with intention to remove the muktzeh before the end of Shabbat.<ref> However, Tosfot 44b s.v. yesh implies that a mid-Shabbat bosis is a bosis even if one had intention to remove it later that Shabbat. Tosfot Beitzah 2a s.v. vbet implies the same if not for Rabbenu Tam's opinion. Rabbi Akiva Eiger 44b is bothered how they explain Gemara 154b. He suggests an answer. Bet Yosef 265:3 similarly holds that a mid-Shabbat bosis is a bosis even if one has intention to remove it later that Shabbat. Maamar Mordechai 265:2 answers Rabbi Akiva Eiger's question for the Bet Yosef. Yalkut Yosef Shabbat v. 1 p. 366 and Netivot Hahalacha 265:1 codify the Bet Yosef and Maamer Mordechai.</ref>
# Some say that if one needs to move this mid-Shabbat bosis one can place upon it something non-muktzeh that is more valuable than the muktzeh item and then it'll be permitted to tilt the bosis or if tilting isn't feasible one can bring it to a place where it is.<ref>Taz 310:8, Mishna Brurah 310:37</ref>
# Some say that if one needs to move this mid-Shabbat bosis one can place upon it something non-muktzeh that is more valuable than the muktzeh item and then it'll be permitted to tilt the bosis or if tilting isn't feasible one can bring it to a place where it is.<ref>Taz 310:8, Mishna Brurah 310:37</ref>